School-desk furniture.



PATENTED 'FEB. 12, 1907.

J. A. WILKINSON.

HE R% U1 Tm. Mm RU UJ m Km mu m LT wm Hm GP SA 442/ freq-4121 UNITED STATE% PATENT OFFICE.

JOHN A. WILKINSON, OF NEW YORK, N. Y., ASSIGN OR TO MARK OOHN, OF

ALBANY, NEW YORK. I

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed June 13,1905. Serial No. 265,004.

T all 7071 0771 it TIZ/LII/ concern: racking of the desk-top upon the standard. 55

Be it known that I, JOHN A. IVILKINsoN, a j The steel tube a at its upper end bears citizen of the Dominion of Canada, residing against the under side of the top panel of the at and whose post-office address is 2&2 West 1 One Hundred and Ninth street, in the city, county, and State of New York, have invented certain new and useful Improvements in School-Desk Furniture; and I do hereby declare the following to be a full, clear, and eX act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in school-desk furniture, and is designed to permit the ready adjustment of the school-desk top to any desired height or level to suit the particular needs of the pupil using the desk. In the adjustment chosen the supporting-standard of the desk-top may be securely clamped or locked, and the clamping or locking means employed for the purpose may also serve to adjust to the desired height the seat for the desk in front and which is to be occupied by another pupil. For the accomplishment of these purposes I make use of simple, strong, and durable elements of construction capable of ready manipulation and which after they have been brought into the desired relative adjustment with respect to each other may be locked or unlocked by means of a single clamping-bolt within immediate and easy access.

In the accompanying drawing, Figure 1 represents a side elevation of an article of schooldesk furniture embodying my inven tion. Fig. 2 represents a vertical sectional view thereof, taken on aplane indicated by the line 2 2 of Fig. 1. Fig. 3 represents a side elevation, partly broken away, showing a modification.

Similar letters of reference indicate similar parts throughout the several views.

Referring to the drawing, A indicates the desk-top of any suitable and convenient form for the purpose. The desk-top A is supported by a tubular standard made up of two telescoping parts. The upper one of these parts consists of a tube a, preferably of steel and having a wood filling b. This tube, with its wood filling, is adapted to pass freely through the metal guide 0, bolted to the bottom panel of the desk-top A, this guide constituting a sufficient bearing to prevent side desk-top when the desk is in use, but permits the desk-top to be entirely removed when it is desired so to doas, for instance, when it is necessary to remove it during shipment or for purposes of repair or substitution. The lower part of the standard consists of ametallic tube (1, which is likewise preferably of steel and which is contained within the hollow interior of a base-plate 6, having a flange f, the tube d having, preferably, a wood filling 9 for that portion which occupies the hollow interior of the plate and flange. The

tube (Z is provided, furthermore, with a lon- 7o gitudinal slot h, whereby it may be clamped upon the upper portion of the standard.

The means employed for clamping the tube at upon the tube a is a collar i, provided with projecting lugs, as shown, which lugs have 7 5 screw-threaded apertures for the reception of the clamping-screw 7c or its equivalent, so that by adjusting the tube a to a given height within the tube (1 it may be securely locked in the position of adjustment chosen by means of the clampingscrew 7c. The collar i preferably bears the bracket for the seat of the pupil occupying the desk in front of the desk A. '1 his bracket may be cast in one piece with the collar 'L, as shown. dicated at n in Fig. 3, the bracket may support a stationary seat, or, as indicated at m in Fig. 1, it may support a folding seat and the back of the folding seat.

It will be evident that in the form shown in the drawing the desk-top and the seat may be relatively adjusted to any desired vertical height and that the manipulation of the single screw-bolt 76, which is within easy access, will suffice to securely clamp or lock 5 the parts in the position chosen.

Having thus described my invention, what I claim is 1'. A desk having a supportingstandard consisting of a telescoping leg, and a seat car- [00 ried by said leg by means of a releasable clamp, said clamp also serving to lock the telescopic leg in the adjustment desired; substantially as described.

2. A desk, having a supporting-standard consisting of a split tube and a cooperating adjustable member fitted thereto, and a seat provided with a clamp for locking the split As in- 85 tube and cooperating member at the desired height of adjustment and for simultaneously l. locking the seat in place upon the standard; i substantially as described. l 3. A desk having a supporting-standard l consisting of a split clamping-tube having a I filling at its lower end, a base-flange surround l ing said lower end, and a cooperating inner I tube having a filling, said inner tube passing through the lower panel of the desk and supporting the upper panel thereof, and a guidecasing through which the inner tube passes at the place where it enters the lower panel; substantially as described.

4, A desk, having a supporting-standard, consisting of a split clamping-tube having a filling at its lower end, a base-flange surrounding said lower end, and a cooperating inner tube having a filling and supporting the up per panel of the desk; substantially as described.

In testimony whereof I afliX my signature in presence of two witnesses.

JOHN A. WILKINSON.

itnesses JOHN C. PENNIE, l/V. BEALLE WILLIAMS. 

